UBUNTU-CVE-2020-25860

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    UBUNTU-CVE-2020-25860

    Published: 21 Dec 2020Last Modified: 24 Oct 2025
    Upstream:
    CVE-2020-25860

    Summary:

    Details: The install.c module in the Pengutronix RAUC update client prior to version 1.5 has a Time-of-Check Time-of-Use vulnerability, where signature verification on an update file takes place before the file is reopened for installation. An attacker who can modify the update file just before it is reopened can install arbitrary code on the device.

    References: https://ubuntu.com/security/CVE-2020-25860, https://github.com/rauc/rauc/security/advisories/GHSA-cgf3-h62j-w9vv, https://www.vdoo.com/blog/cve-2020-25860-significant-vulnerability-discovered-rauc-embedded-firmware-update-framework, https://www.cve.org/CVERecord?id=CVE-2020-25860

    Affected packages

    Package

    Name: rauc

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=focal

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    1.1-2

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    UBUNTU-CVE-2020-25860 | CVE-DB